Defensive publication



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Apr.11, 1968, 849 0.6. 1221. Identification is by serial number of theapplication and the heading indicates the number of pages ofspecification, including claims, and of sheets of drawing contained inthe application as originally filed. The file of this application isavailable to the public for inspection; reproduction may be purchasedfor 30 cents per sheet.

Applications published under the Defensive Publication Program have notbeen examined as to the merits or alleged invention. The Patent Ofilcemakes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED SEPTEMBER 2, 1969 751,354 INSECTICIDES AND SYNERGISTS RonaldEugene Montgomery, Middleport, and Harry Hobart Incho, Medina, N.Y.,assignors t0 FMC Corporation, New York, N.Y., a corporation of DelawareFiled Aug. 9, 1968. Published Sept. 2, 1969 Int. Cl. A01n 9/36, 9/24;C07f 9/46 US. Cl. 424214 No Drawing. 10 Pages Specification Synergisticinsecticidal combinations of esters of chrysanthemumic acid, for examplepyrethrins, allethrin, and l-cyclohexene-1,2-dicarboxirnido) methylchrysanthemumate, with certain w-alkynyl phenyl(phenylcarbamoyl)phosphinate synergists, are described. These synergists have the generalformula:

wherein n is an integer of one to three inclusive. The preparation of3-butynyl phenyl(phenylcarbamoyl)phosphinate, M.P. 83-85 C., and thesynergistic activity of said phosphinate with representativechrysanthemumate insecticides, are described in detail,

